If you can't find any with the NS horsehead, then another option is to buy an undecorated unit and paint it yourself (what could be easier than black?), or strip and paint a decorated unit. I know the SF and SP units have the right headlight/numberboard locations, and there may be others too.
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I have been looking everywhere for an Athearn C44-9W Norfolk Southern Loco with the Horsehead Decals in HO scale. I have looked online, train shows, ebay and LHS. Anybody have any ideas or does anybody know where I can find one. Athearn discontinued these between 2004 and 2006. Thanks